Table 2.
Distribution of the Sample and its Morbidity and Mortality Characteristics Across the Four Smoking Categories, By Race (African Americans and Whites)
| Nonusers | Quitters | Early-onset | Late-onset | |
|---|---|---|---|---|
| Overall % in each smoking categorya | ||||
| African American | 55.3 | 18.6 | 6.5 | 19.5 |
| White | 50.3 | 27.4 | 9.4 | 12.8 |
| % in poor health at Time 2b | ||||
| African American | 50.0 | 13.6 | 9.1 | 27.3 |
| White | 35.2 | 29.5 | 15.4 | 19.8 |
| Mean (SD) age of deathc | ||||
| African American | 57.7 (12.2) | 58.7 (18.9) | 65.3 (7.8) | 58.7 (11.7) |
| White | 67.6 (11.0) | 69.6 (9.3) | 62.9 (11.1) | 65.9 (10.7) |
a P < .01 for the chi-square on Race × Smoking Category.
b P < .05 for the chi-square on Race × Smoking Category.
c P > .2 for the analysis of variance on Race × Smoking Category; this analysis was run on those who died during the study period, and thus results are conditional on mortality occuring during the study period.